From (etyl) . More at (l), (l).
* keene, kene (archaic)
showing a quick and ardent willingness or responsiveness, enthusiastic, eager; interested, intense.
vehement; fierce; as, a keen appetite.
* (rfdate), Shakespeare
- Of full keen will.
sharp; having a fine edge or point.
* (rfdate) :
- So keen and greedy to confound a man.
acute of mind; sharp; penetrating; having or expressing mental acuteness.
- That my keen knife see not the wound it makes.
- To make our wits more keen .
bitter; piercing; acrimonious; cutting; stinging; severe; as, keen satire or sarcasm.
- Before the keen inquiry of her thought.
piercing; penetrating; cutting; sharp; -- applied to cold, wind, etc,; as, a keen wind; the cold is very keen.
- Good father cardinal, cry thou amen to my keen curses.
- Breasts the keen air, and carols as he goes.
- I'm keen to learn another language.
- I'm keen on learning another language.
- I'm keen on languages.
- I'm keen about learning languages.
- I'm keen for help.
(US, informal, dated) Marvelous.
- ''"Do you want to learn another language?" / "I'm keen ."
(UK) extremely low as to be competitive.
- I just got this peachy keen new dress.
(obsolete) brave, courageous; bold, audacious.
- keen prices
* Keen is often used in the composition of words, most of which are of obvious signification; as, keen-edged, keen-eyed, keen-sighted, keen-witted, etc.
* prompt; eager; ardent; sharp; acute; cutting; penetrating; biting; severe; sarcastic; satirical; piercing; shrewd.
* See also
* keen as mustard
* keen on
(rare) To sharpen; to make cold.
* (rfdate), Thomson.
- Cold winter keens the brightening flood.
From (etyl) .
A prolonged wail for a deceased person.
To utter a keen.
* (rfdate) Stuart Howard-Jones (1904-1974), Hibernia.'' Collected in ''The New Oxford Book of English Light Verse, 1978.
To utter with a loud wailing voice or wordless cry.
- Keen —meaning 'brisk'? Nay, here the Language warps:
'Tis singing bawdy Ballads to a Corpse.
Having the ability to enchant; charming, delightful.
* 2013 , Daniel Taylor, Rickie Lambert's debut goal gives England victory over Scotland'' (in ''The Guardian , 14 August 2013)[http://www.theguardian.com/football/2013/aug/14/england-scotland-international-friendly]
- "Fairytale" is an over-used word in football but there is certainly something enchanting about the Lambert story, rejected as a teenager at Liverpool and then playing at, among others, Blackpool, Rochdale, Stockport and Bristol Rovers.
An act of enchantment.
* 1841 , Alfred Beesley, The History of Banbury (page 256)